How to Properly Disinfect a Commercial Washroom

Commercial washrooms are among the most frequently used areas of a building. Proper disinfection requires more than wiping visible surfaces - it requires suitable chemicals, trained cleaners and a consistent process that prevents cross-contamination.

Begin With Safety

Before cleaning begins, a wet-floor or cleaning sign should be placed at the entrance. Cleaners must wear the protective equipment identified on the chemical label and Safety Data Sheet. Washroom-only pails, mops, brushes and colour-coded microfibre cloths should be used and kept separate from equipment used in offices, kitchens and lunchrooms.

Use Cleaning Products Correctly

Chemicals must be properly diluted, labelled and used only on compatible surfaces according to the manufacturer’s instructions.

Cleaning products must never be mixed. Stronger chemical solutions are not necessarily more effective and may damage surfaces or create unnecessary risks. Spraying or misting should only be used when permitted by the product label and the applicable safety procedure.

Clean Before Disinfecting

Garbage, loose debris, soap residue and visible soil should be removed before disinfectant is applied. Dirt and organic material can reduce a disinfectant’s effectiveness. A one-step cleaner-disinfectant may be used only when its label specifically permits one-step cleaning and the surface is not heavily soiled.

Surfaces should be cleaned systematically from high to low and from cleaner areas toward dirtier areas. Frequently touched surfaces include door handles, locks, light switches, dispensers, faucets, sinks, countertops, grab bars, partitions, flush handles, toilet seats and urinals.

The surface must remain visibly wet for the full contact time stated on the product label. Wiping disinfectant away too soon may prevent it from working effectively.

Prevent Cross-Contamination

Microfibre cloths should be folded to provide several clean wiping surfaces and changed when soiled. Used cloths must not be returned to the cleaning solution.

Toilets and urinals are cleaned last using dedicated cloths and tools. Cloths used on toilets must never be used on sinks, counters, dispensers or other surfaces.

Finish and Inspect

Floors should be cleaned last, beginning at the farthest point and working toward the doorway. The approved washroom floor solution must be used according to its label, and standing water or chemical residue should not be left behind.

A final inspection confirms that surfaces are clean, supplies are restocked, garbage is removed and no odours, leaks, damage or safety concerns remain. Used equipment must then be cleaned, gloves removed safely and hands washed thoroughly.

Blood, bodily fluids, needles and other biohazards require a separate specialized procedure and must be reported immediately.

The Arodal Standard

Arodal Services follows documented cleaning procedures, proper chemical controls and colour-coded equipment practices to provide consistent, professional washroom cleaning. Our goal is not simply to make a washroom look clean, but to clean it properly and safely.

Arodal Services — For a Cleaner Tomorrow.